Environment management

Managing your Python environment matters when projects need different Python versions or package versions.

Problem	Solution
Different Python versions are needed	Create isolated environments
Projects need different package versions	Manage dependencies separately
Version conflicts can break code	Keep each project isolated
Setups are hard to reproduce	Share the environment definition

Solution 1: `venv`

venv is the built-in Python tool for creating virtual environments.

python -m venv myenv

Activate it on macOS or Linux:

source myenv/bin/activate

Deactivate it:

deactivate

Conda manages both Python and non-Python dependencies.

conda create -n myenv python=3.10
conda activate myenv
conda deactivate

You can also export an environment:

conda env export > environment.yml

With conda:

conda install -n myenv package_name

With pip inside an activated environment:

pip install package_name